I apologize if this has been discussed but I could not find a specific answer to this question. I have a growatt 3000 watt 24v all in one system. I'm powering it using two 12v 200 amp hour lithium ion batteries set up in series. I am running a 200 amp breaker between the battery and the inverter. I am now working on the AC output, not the input. I am planning on powering a small cabin and just want to run some lights and other small electronics. Based on the 3,000 watts and 120 volts, my understanding is the max breaker I want to use is 30 amps. I planned on putting a 30 amp two-post breaker into a standard breaker box, and then feeding the 120 directly into the breaker and jumping it to the other side of the breaker and using that as the main switch. I would then add single pole 20 amp breakers that would feed out to the lights and outlets. However, I was watching a video and saw some discussions in here where someone was using a 60 amp for the master, and someone mentioned using a 40 amp as well. Now I know the 40 amp is also the suggested size for the AC input. My question is what are the right sizes?
If you need to know any other details, please let me know as I'm relatively new on this website so I don't know what kind of details are expected. Thanks
If you need to know any other details, please let me know as I'm relatively new on this website so I don't know what kind of details are expected. Thanks